chore(package): update react-addons-css-transition-group to version 15.2.1
chore(package): update react-addons-css-transition-group to version 15.2.1

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matthewstyers/keystone,Yaska/keystone,vokal/keystone,naustudio/keystone,frontyard/keystone,xyzteam2016/keystone,jacargentina/keystone,linhanyang/keystone,Adam14Four/keystone,trentmillar/keystone,andrewlinfoot/keystone,benkroeger/keystone,brianjd/keystone,frontyard/keystone,concoursbyappointment/keystoneRedux,jacargentina/keystone,trentmillar/keystone,snowkeeper/keystone,benkroeger/keystone,vokal/keystone,benkroeger/keystone,danielmahon/keystone,pr1ntr/keystone,cermati/keystone,ratecity/keystone,ONode/keystone,sendyhalim/keystone,sendyhalim/keystone,rafmsou/keystone,ratecity/keystone,trentmillar/keystone,snowkeeper/keystone,jstockwin/keystone,alobodig/keystone,cermati/keystone,andrewlinfoot/keystone,Pop-Code/keystone,matthieugayon/keystone,jstockwin/keystone,ONode/keystone,rafmsou/keystone,xyzteam2016/keystone,Yaska/keystone,vokal/keystone,pr1ntr/keystone,dryna/keystone-twoje-urodziny,matthewstyers/keystone,Yaska/keystone,naustudio/keystone,w01fgang/keystone,matthieugayon/keystone,dvdcastro/keystone,michaelerobertsjr/keystone,michaelerobertsjr/keystone,dvdcastro/keystone,Pop-Code/keystone,danielmahon/keystone,w01fgang/keystone,Adam14Four/keystone,frontyard/keystone,matthewstyers/keystone,danielmahon/keystone,dryna/keystone-twoje-urodziny,concoursbyappointment/keystoneRedux,brianjd/keystone,alobodig/keystone,andrewlinfoot/keystone,naustudio/keystone